Steam-shovel.



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PATENTED MAY 24, 1904 G. W. KING, H. J. BARNHART 8; G. B. KING.

STEAM SHOVEL. 7 APPLICATION FILED SEPT. 29. 1002.

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STEAM SHOVEL. I

APPLICATION FILED SEPT. 29, 1902. N0 MODEL.

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No; 760,456. PATENTEDMAY 24, 1904-. G. W. KING, H. J. BARNHART & G. B.KING.

STEAM SHOVEL.

APPLICATION FILED sum-29, 1902.

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No. 760,456. PATENTED MAY 24, 1904.

. KING, H. J. BARNHART & G. B. KING.

STEAM SHOVEL.

APPLIOATION FILED SEPT. 29, 1902.

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v PATBNTED MAY 24, 1904. G. W. KING, H. J. BARNHART 6: 0.11;. KING.

STEAM SHOVEL. APPLICATION IILED SEPT. 29, 1902.

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No. 760,456. 7 PATENTED MAY 24, 1904. G. W. KING, H. J. BARNHART 8: G.B: KING. STEAM SHDVEL,

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We m m No. 760,456. PATENTED MAY 24, '1904. G. W. KING, H. J. BARNHART &C. B. KING STEAM SHOVEL.

APPLICATION FILED saw. 29. 1902. no MODEL. 7 snnn'rs-sannm 7.

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'lubricator therefor.

elevation of the same. ration of the dipper-handle yoke detached. 4

I in place in the block.

UNITED STATES Patented May 24,1904.

PATENT OEEIcE.

GEORGE W. KING, HARRY J. RARNHART, AND CHARLES R. KING, MARION, OHIO,ASSIGNORS TO THE MARION STEAM SHOVEL OOM- PANY, OF MARION, OHIO, ACORPORATION OF OHIO.

STEAM-SHOVEL.

SPECIFICATION forming part of Letters Patent No. 760,456, dated May 241904.

Application filed September 29, 1902. Serial No. 125,241. (No model.)

- To (LZZ whom it iimy concern:

Be it known that we, GEORGE W. KING, HARRY J. BARNHART, and (JIIARLEs B.KING, citizens of the United States, residing at Marion, in the countyof Marion and State of Ohio, have invented certain new and usefulImprovements in Steam-Shovels, of which the following is aspecification, reference being had therein to the accompanying drawings.

This invention relates to steam-shovels, and has for its object toprovide an apparatus of this character having certain advantageousfeatures of construction, which will be hereinafter more fullydescribed.

To this end our invention consists in certain novel features, which wewill now proceed to describe and will then particularly point out in theclaims.

In the accompanying drawings, Figure 1 is a plan view of a steam-shovelembodying our invention in one form, certain parts being omitted. Fig. 21s a side elevation. Fig. 3

is a detail sectional view taken on the line it a of Fig. 1 and lookingIn the direction of the Fig. 4 1s a plan view of the swing arrows. Ingcircle. Fig. 5 is a front elevation of the same, one-half in centralvertical section. Fig.

- 6 is a front elevation of the upper part of the A-frame.

Fig. 7 is a side elevation of the same, partly in vertical section. Fig.8 is a detail side elevation of a portion of the steamsupply pipe forthe crowding-engine and the Fig. 9 is a view of the under or rear sideofthe upper end ofthe dipper-handle. Fig. 10 is a side elevation of thesame. Fig. 11 is a detail view of one face of the dipper-handle stop.Fig. 12 is a side Fig. 13 is a side ele- Fig. 14 is an end elevation ofthe'same. Fig. 15 is a top plan view. Fig. 16 is a side elevation of thebushing of the yoke-block be fore the same is placed in position in theblock. Fig. 17 is an end view of the same. Fig. 18 is a view similar toFig. 16, showing the position of the parts when the bushing is Fig. 19is an elevation of the dipper-bail sheave-block. Fig. 20 is a 1 frames'of the hoisting-engines.

' swinging-drum 15.

View of the same at right angles to Fig. 19 and partly in centralvertical section. Fig. 21 is an enlarged view of a portion of Fig. 20.Fig. 22 is a plan view of one of the trucks. Fig. 23 is a sectional viewof the same, taken on the line 1 jl/ of Fig. 22 and looking in thedirection of the arrows. Fig; 2 1 is an end View of a portion of thetruck. Figs. 25 and 26 are respectively a plan View and, side elevationof a modified form of the swinging apparatus. Fig. 27 is a detail planview illustrating the connection between the swinging circle andboom-brace; and Fig. 28 is a side elevation, partly in section, of whatis shown in Fig. 27.

We will first refer to that portion of our invention which relates tothe arrangement of the hoisting and swinging drums, their ongines, andintermediate connections.

Referring more particularly to Figs. 1 and 2, 1 indicates a suitablecar-body, on which is mounted a hoisting'drum 2, provided with a gear 3,which meshes with a pinion 4 on a shaft 5, which is the shaft of thehoisting-engines 6. These latter are arranged a suit.- cient distanceapart to receive between them the swinging-engines 7, which drive, bymeans of a pinion 8 and gear 9, a counter-shaft 10, which is mounted inbearings 11, supported on the frames of the hoisting-engines 6. Thiscounter-shaft is provided with a pinion 12, which meshes with a gear 13on a shaft 1 1, which carries the swinging-drum 15 and which has itsbearings 16 also supported on the By reason of thislconstruction thehoisting and swinginge'ngines and their drums are arranged compactly, soas to occupy a minimum of space, while at the same time all of the partsareeasy of access.

The swinging circle, which is indicated as a whole by thereference-numeral 1 7, is operated by a cable 18 having its ends securedto the swinging circle, around the periphery of which they pass and arethence carried to the Of course a single cable or two separate cablesmay be employed, as

desired. Adjacent to the swinging circle, im-

swinging-drum 15 occupies an elevated posi tion, and the sheave 19 islocated with its axis vertical, so that it'rotates in a horizontal planeand guides that part of the cable which passes around it to the underside of the swinging-v drum 15. while the sheave 20 has its axis tiltedforward, so that said sheave rotates in a downwardly and forwardlyinclined plane and guides that portion of the cable 18 which passesaround 'it to the upper side of the swinging-drum 15. This feature ofthe construction is shown more particularly in Figs. 1, 2, and 3. v i vThe swinging circle is shown in detail in Figs. at and 5 of the drawingsand embodies certain novel features of construction whereby it ismaterially strengthened. It consists, essentially, of a peripheral orrim portion 22, a central hub 23, and a transverse channelbar 24,secured on topof the hub and having its ends secured tothe annular rim22. At each end ofthe channel-bar 24 there issecured thereon a block orcasting 25, which forms an abutment for the vertical flange of the rim22 and which is provided with a sleeve-like portion 26 to receive thesecuring pin-or bolt 26 of the clevis 27 of the brace 28, which extendsfrom each side of the swinging circle to the boom 29. The points ofconnection of these braces to the boom being higher than their points ofconnection to the circle there is an upward strain upon the sides of thecircle, which is resisted by the transverse channel -bar 24 and isfurther resisted by means of braces 27, secured at their upper outerends to the castings or blocks 25 by means of pins or bolts 26, whiletheir lower inner ends are secured by bolts or pins 28 between lugs 29on the hub 23. By reason of this construction distortion of the circleunder the strains exerted thereon by the boom is prevented.

The A-frame, indicated as a Whole by the reference-numeral 30, ismounted on the body 1 in the usual manner; but it embodies in thestructure of its upper portion or head certain features of materialadvantage. The legs 31 are provided at their upper ends with eyes 32,apertured for the passage of pins 33, by

' means of which they are connected to the tionally held in position bymeans of clips 38, which unite them to the head-casting 34:, near thebottom thereof. Preferably these clips are in the form of U-shaped boltspassing around the legs and through lugs 39 at the bottom of the head.It will be noted that the pins 33 are readily removable when necessaryin case of repairs or the like and in connection with the clips 38 serveto prevent lateral motion of-the parts when the load carried by the boomis swung to one side or the other. Since the head-casting projects downbetween the legs, it tends to prevent said head-casting from tippingfrom one side to the other; but

with the assistance of the clips 38 it will be seen that when suchastrain is brought upon the head-casting as to cause its lower end topress against theupper end of one of the A'- frame legs the clip on theother side acts in tension, so that the strain of supporting the head ina vertical position is taken by both legs no matter in which lateraldirection the strain is exerted.

In apparatus of this character it has heretofore been found diificult toproperly lubricate' the crowding-engines 40, located on the boom 29.This arises from the fact that the boiler 41 is located at the other endof the supporting body or car at a great distance from thecrowding-engines and from the further fact that the pipe 42, whichconveys the steam from the boiler to the crowdingengine, isprovided'with a vertical swiveljoint 43 in line with the center of theswinging table 17 so that it is'necessary to locate the lubricatingdevice which imparts the lubricant to the steam at a point between saidswivel-joint and the boiler in order to lubricate said joint, as\vell'as the crowding-engines. Heretofore it has been deemed necessaryto locate the lubricator at a point close to the swivel-joint 43, forthe reason that if located at a point nearer to the boiler-the lubricantwould not be carried by the'steam a sufficient distance tolubricate thecrowdingengines and swivel-joint. Furthermore, the tendency where allthe engines are connected to one main supply-pipe is for the larger en'-gines to-draw the oil away from the smaller ones, and where thelubricator has been located near the boiler this has resulted in afurther decrease in or prevention of the supplace.

which is connected the lubrieator 46. By reason of this construction thelubricant will by the action of gravity settle to the bottom ordepressed portion of the U-shaped bend,

where it will accumulate in sufficient quantity to be forced by theaction of the steam through the different bends and elevations of thepipe 42 to the swivel-joint and crowding-engines. By reason of thisconstruction we are enabled to locate the lubricator in a position nearthe boiler where it will not be exposed and where the lubricant will bekept warm, while at the same time an eflicient supply of lubricant iscarried by the steam to the parts to be lubricated and the largerengines are prevented from drawing off the supply for thecrowding-engines and the lubricant is prevented from flowing back bygravity, so as to travel in the wrong direction. We are also enabled inthis way to employ the ordinary commercial lubricator.

The dipper-handle, indicated as a whole by the reference-numeral 47, isconstructed in the usual way of two parallel members each provided onits under or rear side with a rack 48, these racks meshing with pinionsi9 on a shaft 50, mounted on the boom 29 and driven by suitable gearingfrom the crowding-engines 40. In order to prevent the dipper-handle frombeing shoved out too far, we have provided for each rack a terminal stopat the u pper end thereof comprising a plate 51, fitting against theunder side of the dipper-handle at the end thereof and adapted to besecured in position by a single bolt 52, passing through thedipper-handle and through a suitable aperture 53 in the plate 51. Thisplate is provided with gear-teeth to engage the end teeth of the rack 48and in conjunction with the bolt 52 hold the plate firmly in position onthe dipper-handle. In the present instance we have shown said plate asprovided with a gear-tooth 54 to lit between the last two teeth of therack 48 and with a recess 55 adjacent thereto to receive the last toothof the rack. In addition thereto the plate 51 carries a boss orprojection 56, having a curved face 56 adapted to fit against thecorresponding pinion 49 when the handle is moved to the limit of itsmotion in an outward and downward direction. It will be seen that theintermeshing gear-teeth of the rack and stop-plate receive the entireforce of the end thrust of the meeting of the parts, so that thestop-plate may be readily held in place by a single bolt, thusfacilitating its removal when not needed or when the handle is to beslipped into or out of A further advantage of this construction is thatthe stop comes into contact with the pinion where it can do the leastdamage. Heretofore stops have been employed which come into contact withthe yoke-block, hereinafter referred to, such. contact frequentlyresulting in serious breakage. The yoke-block, indicated as a whole bythe reference-numeral 57, fits between the members of the handle andembraces the shaft 50, so as to hold the racks of the handle in meshwith the pinions 51. It comprises a head-block 58 and a body portionmade in two parts 59 and 60 and united to the head-block by a yoke orU-shaped bolt 61, the ends of which pass through the head-block 58 andreceive the nuts 62. Owing tothe jarring strains to which the parts aresubjected some form of nut-lock is necessary to prevent the nuts 62 fromworking loose, and it has heretofore been customory to place alocking-plate between the nuts and secureit to the head-block 58 bymeans of a bolt or screw. This bolt or screw will itself work loose inpractice and the locking-plate will drop off, thus permitting the nutsto become loose. To obviate this objection, we employ a headblock havingthereon a central projection 63, the locking-plate 64: having acorresponding aperture, through which said projection extends. Theprojection 63 is itself transversely apertured, as indicated at 65, toreceive a key or cotter 66, which passes through said projection outsideof the locking-plate 64 and serves to firmly hold said locking-plate inpo-.

sition and prevent it from jarring loose. in this way accidentalloosening of the nuts 62 is effectually prevented.

Great di'lii'culty has heretofore been found in providing a suitablehearing within the yokeblock for the shaft 50. A cast-iron bearing isfound to cut out very rapidly, while a babbitted hearing will crush out,owingto the constant pounding of the (.lippeehandle. Brass bushings haveheretofore been used; but they have been held in place by means ofdowels, which is an expensive and unsatisfactory con structiou. Toovercome this objection, we employ a brass bushing in the form of asleeve 67, having formed on its exterior an annular rib 68, locatednearer one end of the sleeve than the other. This sleeve is then splitin two longitudinally, as indicated at 69, so as to divide it into twoequal halves. The members 59 and 60 of the body of the yoke are boredout to lit the diameter of the sleeve 67 and are also provided with agroove or annuparts one of the members 60 or 59 is turned end for end,and one of the two halves of the sleeve 67 is also turned end for end,as mdicated in Fig. 18, and the halves are then placed in positionbetween the members 59 and 60 of the body of the yoke-block. It will beseen that when the parts are thus assembled the ribs on thesleeve-sections will not only prevent the sleeve-secti0ns from movinglongitudinally, but will also prevent them from turning within the partsof the yokebody, since the'members are so reversed that the recesses inwhich the ribsfit extend only half-way around in each case. WVe havethus provided for a simple split brass bushing easily constructed,readily put into place, and securely held in position when in place.

The dipper sheave-block, (indicated as a whole in Fig. 2 bythereference-numeral 70,) is shown in detail in Figs. 19, 20, and 21. Itcomprises a sheave 71, having an elongated hub 72, which extends somedistance in each direction beyond the sides of the rim of the sheave.The sheave is mounted on a bearingpin 73, supported in a framecomprising side bars 7 4:, which are bent out or deflected laterally atto accommodate the extended hub of the sheave and thecorrespondingly-extended bearing-pin 7 3. By reason of this constructionwe obtain a hub of sufficient length to insure a proper bearing for thesheave. Preferably the bearing-pin 73 is provided withsquared ends 76,which fit within corresponding apertures in the outwardly-deflectedportions 75 of the side bars 74. In order to guide the chain and hold itproperly in the grooved periphery of the sheave, guideplates 77 areemployed, secured to the inner faces of the side bars 74, so that theylie closely adjacent to the sides of the periphery of the sheave andmaintain the chain in proper relation thereto. These guide-plates areprovided with apertures 78, through which the ends of the hub 72 extend,and this construction enables us to set the guide-plates up close to thesheave, while at the same time the hub is given the desired length.

In order to properly lubricate the bearingsurfaces between the hub 72and bearing-pin 7 3, we form within the pin 7 3 a cylindrical chamber79, extending axially therein from one end and provided with radialpassages 80, extending from said chamber to the periphery of the pin.Through the closed end of the pin there extends into the chamber a rod81, turning loosely in the solid portion of the pin and provided at itsexposed end with a head 82 and washer 83, and the pin being providedwith a recess 84 and a packing 85 therein adjacent to said head andwasher. That portion of the rod 81 which projects within the chamber 79is threaded, as indicated at 86, and passes through acorrespondingly-threaded nut or pistonv 87, fitting within the chamber79 and provided with packingdisks 88, of leather or the like, securedthereto by bolts 89, the heads of which project into the interior of thechamber 79. A plate 90, pivoted to one of the side bars 7 4, serves as aclosure for the open end of the chamber 7 9. The chamber 79 beingsupplied with a lubricating-grease, it will be seen that by rotating therod 81 by means of its head 82 the nut or piston 87 may be drawn towardthe closed end of the chamber, thereby forcing the grease out throughthe passages 80, so as to lubricate the bearingsurfaces between thesheave-hub and pin. The packings 85 and 88 prevent escape of tne greasein any other direction, and the projecting nuts 89 extend into thegrease to an extent sufficient in practice to prevent the piston or nut87 from rotating when the rod 81 is turned in the manner described.

' In the particular embodiment of our invention shown in Figs. 1 and 2the steam-shovel illustrated is of that type adapted for use uponrailways and is supported upon trucks, which are indicated as a whole bythe reference-numeral 91. Such trucks, where they are used in connectionwith a steam-shovel of the character described, are subjected to lateralstrains much greater than ordinary railroad-trucks, and for the purposeof adapting the trucks to better resist these strains we have devisedthe construction shown more particularly in Figs. 22 and 23. In thisconstruction the truck-bolster(indicated at 92 is provided on its underside with a socket-casting 93, within which fits a projection- 94,mounted on a channel-bar 95, which forms the spring-board of the truck,the springs 96 being interposed between said channel-bar and the bolster92, at each end thereof. The lower arch-bars 97 and tie-bars 97 passunderneath and are secured to the ends of the channel 95, while theupper arch-bars 98 pass over the top of the bolster 92, which latterisprovided with projections or castings 99, secured thereon on each sideof the upper archbars, so as to prevent lateral motion of the bolsterrelatively thereto. By reason of this construction the side thrust istaken by both the top and bottom arch-bars and tie-bars, and twisting ofsaid bars is thereby prevented.

WVe do not wish to be understood as limiting ourselves to the precisedetails of construction hereinbefore described, and shown in theaccompanying drawings, as it is obvious that these details may bemodified without departing from the principles of our invention. Forinstance, we have shown in Figs. 25 and 26 a modified form of the cableconnections between the swinging-drum and swinging circle. In thisconstruction the swinging-drum 15 is provided with a double groove, andthe sister-sheaves 19 and 20 are also provided with double grooves. Theswinging. circle 17 has corner-castings 17, provided with doublegrooves, located'one above the other, and its cable and secure increasedflexibility thereof without losing strength. The diameters of the drumsand pulleys are necessarily limited, and the smaller and more flexiblecables will operate more satisfactorily over sheaves and drums of smalldiameter than a single cable of larger diameter.

We make no claim in the present application to the bearing hereindescribed, and shown more particularly in Figs. 13, 14:, 16, 17, and 18,as the same forms the subject-matter of a divisional application filedby us February 7, 1903, Serial No. 142,298, and patented May 26,1908,No. 7 29,356. We also make no claim in this application to the truckherein described, and shown in Figs. 22, 23, and 24, as the same formsthe subject-matter of a divisional application filed by us February 7,1903, Serial No. 142,299, and patented April 14, 1903, No. 725,344.

Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is

1. In a steamshovel,the combination, with a body or support, of ahoisting-drum and separated engines therefor located. thereon,swinging-engines located between the hoisting-engines, and aswinging-drum supported on the hoisting-engine frames, substantially asdescribed.

2. In a steam-shovel,the combination, with a body or support, of ahoisting-drum mounted thereon, separated hoisting-engines having acommon engine-shaft geared to the hoistingdrum, swinging-engines locatedbetween the hoisting-engines, and a swinging-drum and counter-shaftmounted on the hoisting-engine frames, substantially as described.

3. In a steam-shovel,the combination, with a swinging circle having arim and hub, of a bar extending diametrically across the top of the hubto the rim and secured to the hub and rim, a boom, braces extending fromthe ends of the bar upward and forward to the boom, and other bracesextending from the ends of the bar downward and inward to the hub,substantially as described.

4. In a steam-shovel, the combination, with a swinging circle comprisinga rim and hub, of a diametrical channel-bar secured to said parts, ablock or casting mounted on each end of said channel-bar, a boomconnected to the circle, braces extending from the blocks or castingsupward and forward to the boom, and other braces extending downward andinward from the blocks or castings to the hub, substantially asdescribed.

5. In a steam-shovel, an A-frame comprising legs converging at theirupper ends, a head-casting provided with recesses or seekets to receivethe upper ends of the legs, and pins removably connecting said parts,substantially as described.

6. In a steam-shovel, an A-frame comprising upwardly-converging legs, ahead-casting to which the upper ends of said legs are secured, saidhead-casting extending down and fitting between said legs, said legsbeing fastened attheir upper ends to the head-casting, and thehead-casting being provided at its lower end with clips, which hold saidlegs against the same, substantially as described.

7. In a steam-shovel, an A-frame having upwardly-converging legs, and ahead-casting extending down between said legs and provided with socketsto, receive the same, and bearing-surfaces for the adjacent sidesthereof, pins passing through said head-castings and through the upperends of the legs, and U-shaped clips removably secured to the lower endof the head-casting and embracing the respective legs to hold the sameagainst the bearing-surfaces of the head, substantially as described.

8. In a steam-shovel, the combination, with a swinging boom andcrowding-engines mounted thereon, of a boiler, a steam-pipe connectingthe boiler and crowding-engines and provided with a downwardly-deflectedor U- shaped portion, and a lubricator connected to said portion,substantially as described.

9. In asteam-shovel, the combination,with a swinging boom andcrowding-enginesmounted thereon, of a boiler, a steam-pipe connectingthe boiler and crowding-engines and having a swivel-joint, saidsteam-pipe being provided with a downwardlydeflected or U- shapedportion adjacent to the source of supply of steam, and a lubricatorconnected to said portion of the pipe, substantially as described.

10. Ina steam-shovel, the combination,with a dipper-handle provided witha rack, and a pinion meshing therewith, of a terminal stop therefor,comprising a plate secured to the same surface as the rack, adapted toengage the rack and provided with a stop projection to engage thepinion, substantially as described. m

11. In a steam-shovel, the combination, with a dipper-handle and a racksecured to the under side thereof, of a terminal stop also secured tothe under side of the dipper-handle at the end of the rack, the securingmeans consisting of a single bolt passing through the stopplate anddipper-handle, said stop-plate being provided with a tooth and recess toengage the end teeth of the rack and having a stop projection to abutagainst the driving-pinion, substantially as described.

12. Inasteam-shovel,ayoke-bloek eomprising a head-block having anapertured projection, a body portion, a U-shaped yoke-bolt uniting thesame to the head-block andprovided with nuts on the outer side thereof,a locking-block fitting against said nuts and having an aperture for thepassing of the headblock projection, and a key or cotter passing throughthe aperture in said projection on the outside of the locking-block,substantially as described.

13. In asteam-shovel, the cornbination,with a body or support, of ahoisting-drum and separated engines therefor located on said support,and swinging-engines and a swingingdrum located between thehoisting-engines, substantially as described.

14:. In a steam-shovel, the cornbination,with abody or support, of aswinging circle,a swinging-drum, sister-sheaves located adjacent to eachother and to the swinging circle at the rear thereof, said drum andsheaves being provided with double grooves, equalizing-pulleys mountedon the swinging circle, and double cables passing around saidequalizing-pulleys and aroundthe rim of the circle in oppo- I sitedirections, said double cables passing around the respectivesister-sheaves and to the upper and under sides of the swingingdrum, towhich their ends are secured, substantially as described.

